Guitar stop



FIG. 1 is a front view of a guitar stop showing my new design;

FIG. 2 is a rear view of the guitar stop;

FIG. 3 is a right side view of the guitar stop;

FIG. 4 is a left side view of the guitar stop;

FIG. 5 is a top view of the guitar stop;

FIG. 6 is a bottom view of the guitar stop;

FIG. 7 is a bottom front side perspective view of the guitar stop; and,

FIG. 8 is a bottom front side perspective view of the guitar stop in use.

The broken lines in FIG. 8 are illustrative of environmental structures forming no part of the claimed design. 

CLAIM The ornamental design for a guitar stop, as shown and described. 